Described herein are pharmaceutical packaging methods which protect against oxidative degradation of morphine, hydromorphone, promethazine and also other oxygen-sensitive medicines, this sort of systems including a syringe with the oxygen permeable idea cap, a hermetically sealed oxygen barrier blister packaging with very small permeability to oxygen and comprises ethylene vinyl, https://trazodoneforsleep70234.idblogmaker.com/34477361/trazodone-for-sleep-an-overview